fix(ui): Task 11 review — verify false override end-to-end, move HasOverrideDelta to the partial, label wording

Claude-Session: https://claude.ai/code/session_01Y5ef34iUUMjmwnMpL9xgmB

tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Deployment/InstanceConfigureMesReportableTests.cs

@@ -46,6 +46,9 @@ public class InstanceConfigureMesReportableTests
         var selectEnd = markup.IndexOf("</select>", selectStart, StringComparison.Ordinal);
         Assert.True(selectEnd > selectStart, "MES reportable select is not closed.");
 
+        // Label mirrors the adjacent "Priority override" control.
+        Assert.Contains("MES reportable override</label>", markup);
+
         var selectBody = markup[selectStart..selectEnd];
         var optionCount = selectBody.Split("<option").Length - 1;
         Assert.Equal(3, optionCount);